I had keyhole surgery for my double IH. I didnt experience pain with mine and lived with them for some years before discomfort made me do something about them.
I used my works private healthcare for this and for me it was a pretty easy experience. It was 4 years ago. I’d been told I could be left with pain, etc which was quite scary esp as womens botched mesh insert ops in Scotland were in the news at the time.
In the 4 years since I had it done I very infrequently can feel something from the site but mostly, nothing.
The wound sites all healed, the slowest to heal was the one in my belly button where they pumped in the air. It took ages but I am a slow healer. If I was faced with the same choices again now, I’d probably defer it a while longer, but I know memories of the discomfort I felt have faded. I am 59.
(Open surgery was never discussed as an option for me)